Abstract: A cut design of an ornamental diamond and an observation method of the diamond which an observer can perceive a more beauty, are disclosed. The cut design is a round brilliant cut comprising a girdle, a crown above the girdle and a pavilion below the girdle. A girdle height (h) is 0.026 to 0.3 times a girdle radius, a pavilion angle (p) of a pavilion main facet ranges from 37.5 degrees to 41 degrees, and a crown angle (c) of a crown main facet is within a range of satisfying: c>?2.8667×p+134.233 and p<1/4×{(sin?1(1/n)+sin?1(1/n·sin c))×180/?+180·2c}, wherein n: refraction index of a diamond, ?: circular constant, p: pavilion angle in degrees, and c: crown angle in degrees. The cut design of the ornamental diamond provides an observer with plenty of visual-perceptible reflection when the observer watches the diamond above a table facet with a sight line of an angle less than 20 degrees with a vertical line at the center of the table facet.

Abstract: The invention refers to an apparatus for the control of brakes in bicycles and the like, to be used, in particular, for disc brakes mounted on bicycles and comprising a pump able to push fluid into a hydraulic circuit connected to the brake, characterized in that the pump is held inside the handlebar or a part associated therewith.

Abstract: A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially inside or outside said coil and positioned at an angle relative to a direction of movement of an armature. Further, various recesses, indentations, chamfers, bevels, and/or depressions may be included to affect flux leakage, and/or force generation.

Abstract: An air-intake device of an engine for a leisure vehicle, in which at least two air-intake passages are arranged within an engine body of the engine, is disclosed, including an air-intake pipe through which fresh air is supplied to the at least two air-intake passages arranged within the engine body, and a throttle valve openably mounted within a passage of the air-intake pipe. Typically, the air-intake pipe is structured such that the passage has a cross-section of a non-perfect circle shape and an outer periphery of the air-intake pipe has a cross-section of a circle shape with a continuously varying positive curvature. Typically, the throttle valve has a valve disc of a non-perfect circle shape conforming to the shape of the cross-section of the passage of the air-intake pipe.

Abstract: The machine comprises a texturing zone (12) trough which a covering yarn (22) advances; a feed unit (C) for an elastomer yarn (20); combining means to combine the textured covering yarn (22) with the elastomer yarn (20), said means comprising a first roller (B) to which said textured covering yarn (22) and said elastomer yarn (20) are fed; downstream of said first roller (B) an interlacing device (23) to interlace said textured covering yarn (22) and said elastomer yarn (20). Moreover, a drawing roller (A) for the textured covering yarn (22) is also provided between the texturing zone (12) and said first roller (B) of the combining means.

Abstract: An internal combustion engine that can be operated in compression ignition mode, comprising a fuel injector (2) for each cylinder; a fuel injection control unit (4) for controlling fuel injection quantity and a piston (5) in each cylinder whose compression action causes a mixture of air and fuel to be ignited. The engine is further provided with inlet and outlet valves (6, 7) and sensors (12–16) for measuring various engine operating parameters, is disclosed. During compression ignition mode, the control unit controls the fuel injector to perform a first fuel injection before, and a second fuel injection after top dead center of the piston stroke during or after a negative valve overlap period. A method for operating the engine and a computer readable storage device (4) having stored therein data representing instructions executable by a computer to implement a compression ignition for an internal combustion engine is also described.

Abstract: Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, catalyst design, and exhaust system design.

Abstract: A system and method for utilizing a humidity sensor with an internal combustion engine of a vehicle is described. Specifically, information from the humidity sensor is used to adjust a desired air-fuel ratio to reduce engine misfire while improving vehicle fuel economy. Further, such information is also used to adjust timing and/or lift of the valve in the engine cylinder. Finally, diagnostic routines are also described.

Abstract: The present invention achieves a shallow junction of a source and a drain, and provides a doping method which makes device properties reproducible and a semiconductor device fabricated using the method. In the present invention, doping for the semiconductor is conducted by attaching a molecular species with a higher electron affinity or lower ionization energy out of fullerene derivatives or metallocenes to the semiconductor surface to induce charge transfer from the molecule to the semiconductor.

Abstract: A projection device is provided. In one embodiment, the projection device may include an optical system mounted within the projection device and having an optical system axis substantially parallel to the optical system. The projection device further may include a combination control operatively coupled to the optical system and having a control axis that is non-parallel to the optical system axis.

Abstract: A method for controlling operation of a diesel engine having a plurality of cylinders, the engine including a first group of cylinders and a second group of cylinders, the method comprising of operating the first group of cylinders with a first intake and exhaust valve timing, the first group of cylinders inducting air and performing diesel compression ignition combustion of injected fuel; and operating the second group of cylinders with a second intake and exhaust valve timing, the second group of cylinders inducting air and performing diesel compression ignition combustion of injected fuel, wherein said second intake valve timing is retarded compared to said first intake valve timing or said second exhaust valve timing is advanced compared to said first exhaust valve timing.

Abstract: An ion mobility spectrometer is provided including at least one ionization chamber (1), which can be passed through by analyte-containing gas and at least one radiation source (2), from which ionizing radiation which is suitable for at least partially ionizing the analyte-containing gas enters the ionization chamber (1). At least one transition area (3) is provided, into which the at least partially ionized gas as ion carrier gas (4) and an almost ion-free gas as drift gas (5) can be charged in a way that, at least at the end of the transition area (3), a flow is established, in which cross-sectional areas (6) are mainly passed through by ion carrier gas (4) and other cross-sectional areas (7, 7?) are mainly passed through by drift gas (5).

Abstract: A method for controlling an engine that operates with negative valve overlap between an intake valve and an exhaust valve during at least some conditions, the method comprising of providing an engine stop position with at least one cylinder near top dead center of piston position and adjusting at least one of the intake valve and the exhaust valve to position the at least one of the intake and exhaust valves of said at least one cylinder so that the at least one of said intake and exhaust valves is substantially closed at said engine stop position.

Abstract: A web-spreading device and a web-spreading process are provided. The web-spreading device, is provided whereby a first web strand being conveyed and a second web strand being conveyed next to the first web strand in a web-processing machine can be offset in parallel to one another in order to set a spread. A frame supports a first deflecting device (5r; 5r?), which forms a first deflection axis for the first web strand (Br), and a second deflecting device (6r; 6r?), which forms a second deflection axis for the first web strand (Br), which deflection axis is the next deflection axis for the first deflection axis in the conveying direction (F). The first web strand (Br) is offset in parallel by wrapping around the deflecting device (5r, 6r; 5r?, 6r?) and the spread (X; X+Y) is thus set in its entirety or in part. At least one of the deflecting devices (5r, 6r; 5r?, 6r?) is mounted adjustably along an adjustment path in the frame (2) in order to set the spread (X; X+Y).